Issue for adding dynamic changes over one note?

Starting in version 3.1 you can now use a hairpin on a single note. Perhaps this should be the basis for a how to so in the future we can just point there.

To turn on Single note dynamics:
In the synthesizer, load the MuseScore_General_HQ soundfont (can be found in Help->Resource Manager in the extensions tab) in the fluid tab (keep it first in the list). In the Dynamics tab, choose Dynamics method "Default" and CC to use CC 2 (Default). Finally, click "Switch all patches:" to "To Expressive" and then click set as default.

You will not need to do this again to set up dynamics using a sound font with expr. sounds for instruments like the MuseScore_General_HQ soundfont.

or

In the synthesizer, choose Dynamics method CC Events only (constant velocity) and CC to use CC11, Click set default and most existing soundfonts will allow single note dynamics. From what I hear, this should work for all soundfonts.

There is no need to use the expr. sound in the HQ soundfont. As with the CC2 method, you won't need to do this again unless you do something to reset the synthesizer, like revert to factory settings.

Existing scores from previous version will use single note dynamics at this point. There are more things to learn about using single note dynamics correctly, but this is the first step.